If you have a passcode set on your iPhone, you’re pretty safe.
That step will at least prevent the thief from using your phone.
Contact your company’s helpdesk to learn about your options.

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Use iCloud to remove the cards.
you’re gonna wanna have set up Find My iPhone before your phone was stolen.
Some of these apps also allow you to remotely change security configs.

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Going to the house of the person who stole your phone could put you at risk.
Your corporate IT department may be able to prevent the thief from accessing critical business information.
It’s a good idea to brush up on those procedures from time to time.

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Before you cancel your phone service, try tracking it using Find My iPhone.
After service is turned off, you won’t be able to track it anymore.
Don’t let the thief gain access to accounts whose passwords are saved on your iPhone.

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Changing your email account passwords will prevent the thief from reading or sending mail from your phone.
Having a police report is a big help here.
In that case, you should notify the people in your address book and email accounts of the theft.

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